ACTA VETERINARIA ET ZOOTECHNICA SINICA ›› 2014, Vol. 45 ›› Issue (11): 1793-1798.doi: 10.11843/j.issn.0366-6964.2014.11.008

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Cloning FGF5 from Inner Mongolia Cashmere Goat and Construction and Identification of shRNA Expression Vectors Targeting FGF5 Gene

BAO Wen-lei,HE Qi-buri,YAO Rui-yuan,GUO Zhi-xin,BAO Chao-getu,WANG Yan-feng,WANG Zhi-gang*   

  1. (College of Life Science,Inner Mongolia University,Hohhot 010021,China)
  • Received:2014-01-25 Online:2014-11-23 Published:2014-11-23

Abstract:

To construct the shRNA vector(pRNAT-shRNA) for Inner Mongolia Cashmere goat fibroblast growth factor 5(FGF5).Total RNA as templates was extracted from Inner Mongolia Cashmere goat fetal fibroblasts(GFb) cells,FGF5 CDs was amplified by PCR.Three shRNA sequences targeting FGF5 were designed and linked with interference vector pRNAT-U6.1/Neo,labeled as pRNAT-shRNA1,pRNAT-shRNA2 and pRNAT-shRNA3,which were transfected into GFb cells by lipofectamineTM2000.FGF5 mRNA expression was detected by real time PCR.The results showed that the cloned FGF5 CDs from Inner Mongolia Cashmere goat was 813 bp in length including integral ORF which encodes 270 amino acids residues.The homology of nucleotide sequence and predicted amino acid sequences were all 99% compared with ovis aries FGF5.pRNAT-shRNA was constructed successfully.Green fluorescence could be seen from transfected cells for 48 h.FGF5 mRNA expression levels were significantly lower than control group(P<0.01) in transfected pRNAT-shRNAs groups,The interference effect of pRNAT-shRNA2 group was the best in 3 groups.pRNAT-shRNA vector may provide a novel applicable strategy for the function of FGF5 in hair follicle.

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